Liquid Level Indicator yellow (Please seek ROVI advice if using this item for the first time)
£10.80
Description
Please note this product is not suitable for people with pace makers.
One of our best sellers, designed to sit on the side of a cup. 3 metal prongs act as sensors to detect liquid level. The first 2 prongs are longer, making a bleeping noise at first contact and the third, shorter prong, bleeps faster to signal near full.
